If we add more independent variables into the model: A) The R²value will decrease if the variables we are adding into the model should not be there. B) The R²value will increase. C) The adjusted R²value will increase. D) The R²will be biased.

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Quizplus · Accepted Answer

Adding more independent variables into the model typically increases the R²value, implying improved model performance. However, it is important to ensure that the added variables are meaningful and contribute to the model's accuracy, else the model might overfit the data, leading to unreliable results.

If We Add More Independent Variables into the Model